10989772800 has 336 divisors, whose sum is σ = 37574476032. Its totient is φ = 2831155200.

The previous prime is 10989772793. The next prime is 10989772817. The reversal of 10989772800 is 827798901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19046112 + ... + 19046688.

Almost surely, 2^10989772800 is an apocalyptic number.

10989772800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10989772800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18787238016).

10989772800 is an abundant number, since it is smaller than the sum of its proper divisors (26584703232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10989772800 is an equidigital number, since it uses as much as digits as its factorization.

10989772800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 51.

The spelling of 10989772800 in words is "ten billion, nine hundred eighty-nine million, seven hundred seventy-two thousand, eight hundred".